Operation
Platform lifts must be independently usable. Lifts that are required to be "attendant-operated” by the ASME code, such as inclined wheelchair lifts that are not enclosed, do not meet this requirement. All lifts addressed by Chapter XX of the ASME code are required to be key operated. Permanently fixed keys can provide the level of "unassisted" use and operation required by ADAAG. (Issuance of keys to specific individuals is acceptable for lifts serving incidental, not public, spaces used by a specific set of users, often employees). Controls must meet requirements in 4.27 for controls and operating mechanisms.
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